#page_div{
    position:absolute;
    height:40px;
    font-size:16px;
    line-height:40px;
    color: #5e5d5d;
    margin-left:900px;

    margin-bottom: 15px;
}
.page_btn{
    float:left;
    margin-left:10px;
}
.page_btn input{
    width:36px;
    height:24px;
    text-align:center;
    border-radius:2px;
}

.nav{
    overflow: hidden;
    width:15%;
    float:left;
}li{
     overflow: hidden;
     height:40px;
     line-height:40px;
     padding-left:50px;
     font-size:18px;
 }.nav h3{
      overflow: hidden;
      font-size: 25px;
      margin-top: 30px;
      text-align: left;
      color:#666;
      padding-left:80px;
  }.main{
       width:85%;
       height:90%;
       float:left;
       background:white;
       padding:65px;
       margin-top:15px;
       margin-bottom: 5px;
       box-sizing: border-box;
   }.bot{
        border-top:1px solid #ccc;
        text-align: center;
        font-size:14px;
        color:#999;
        margin-top:50px;
        padding-top:10px;
    }.btn{
         width:90px;
         height:45px;
         color:white;
         font-size:17px;
         line-height: 40px;
         background:#2e2f81;
         margin-top:30px;
         text-align: center;
         border-radius: 3px;
         margin-right:35px;
     }
.theader th{
    padding:20px;
    font-weight: 100;
    font-size:18px;
}